Thread: Machine Gun ?
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Old 03-16-2012, 11:28   #1
GWG19
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Join Date: Jan 2012
Location: Huntsville Al
Posts: 429
Machine Gun ?

I have a M11. I have seen 22 LR uppers for it.
My question is if I manufacture a upper in say 5.7X28 do i need to send a letter in on it to run the new upper?
In my case the whole gun is registered. I am running a lage upper on it right now, which does not change the caliber.
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